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BJU CH.4 Chemistry Review Flashcards | StudBud
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BJU CH.4 Chemistry Review
BJU CH.4 Chemistry Review
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Chapter 4 of BJU Chemistry
Flashcards
50 cards
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Practice quiz
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Questions
50
Answers
1
Howdo you discover the average atomic mass of an element?
(% + mass) x (% + mass)
(%x mass) x (% x mass)
(% x mass) + (% x mass)
(% + mass) + (% + mass)
2
What is the name of this model?
Dalton model
Bohr model
Thomson model
Rutherford model
3
What's wrong with the incorrect orbital diagram?
violates aufbau
violates hund
violates pauli
4
Who was known as the "father of modern chemistry"?
J. J. Thomson
John Dalton
Antoine Lavoisier
Lord Rutherford
5
Write the name and symbol for the elements with the following orbital diagram.
K
Na
Mg
Ca
6
What is another name for the Bohr model?
Plum Pudding model
Rutherford-Bohr model
Quantum Mechanical model
Planetary model
7
What is another name for the Thomson model?
Planetary model
Rutherford-Bohr model
Plum Pudding model
Quantum Mechanical model
8
Lithium has an average atomic mass of 6.941 amu. Which of its two isotopes is more abundant?
7Li (7.016 amu)
6Li (6.015 amu)
9
This is the orbital diagram for the ground state of the element
Ar
Ru
Ca
Fe
10
average atomic mass
scattering of a light beam as it passes through a colloid
substance with atoms that are all alike
particles of matter the make up protons and neutrons
weighted average mass of mixture of an element isotopes
11
What is the name of this model?
Bohr model
Thomson model
Rutherford model
Dalton model
12
The atomic _____ is the average mass of the _______?
Mass, Element.
People, Oxygen
Hydrogen, Atom
Number, Element
13
Which part of Dalton's atomic theory was incorrect?
Atoms of different elements combine in whole number ratios
In chemical reactions, atoms combine, separate or rearrange
Atoms are indivisible
Elements are made up atoms
14
What is the error in the following orbital diagram?
Overfilled 3s
3p arrows wrong way
3p is not after 3s
Unfilled 2s
15
Who developed the planetary model?
John Dalton
J. J. Thomson
Lord Rutherford
Niels Bohr
16
Who conducted the gold foil experiment?
J. J. Thomson
James Chadwick
Robert Millikan
Lord Rutherford
17
Electron dot structures represent the number of...?
valence electrons
total electrons
neutrons
none of the above
18
Which of the following was NOT a conclusion of the gold foil experiment?
Atoms are mostly empty space
The nucleus contains protons and neutrons
Atoms contain a small positively charged nucleus
Electrons orbit the nucleus
19
Mass Number is
e- + p
p+ + n0
n0 - p+
n0 + e-
20
What is the current model of the atom?
Bohr's model
electron cloud model
planetary model
core-envelope model
21
The atomic mass of an element is the _____.
Total number of subatomic particles in its nucleus
Average of the mass number and atomic number for the element
Total mass of the isotopes of the element
Weighted average of masses of the isotopes of the element
22
What elements has the following complete orbital diagram
Mg
Rb
Na
Mn
23
what is the electron configuration of Arsenic?
4s2 3d10 4p3
[Ne] 3s2 4p6
As
[Ar] 4s2 3d10 4p3
24
Who conducted the cathode-ray experiment?
J. J. Thomson
Robert Millikan
John Dalton
Lord Rutherford
25
Which of the following electron dot notations is correct for the element carbon, C.
III
IV
V
I
26
Who discovered the proton?
Robert Millikan
James Chadwick
Lord Rutherford
J. J. Thomson
27
Which Greek philosopher believed that all matter consisted of tiny particles called atoms?
Democritus
Aristotle
Plato
Socrates
28
Match the electron configuration to this orbital diagram.
1s22s22p4
1s22s22p5
1s22s22p63s2
1s22s5
29
What is the name of this model?
Dalton model
Thomson model
Rutherford model
Bohr model
30
Find the average atomic mass of Chlorine.
34.48 amu
40.51 amu
35.45 amu
33.78 amu
31
What is the electron configuration of K+?
[Ar] 4s2
[Ne] 3s2 3p5
[Ar] 4s1
[Ne] 3s2 3p6
32
Write the name and symbol for the elements with the following orbital diagram.
Ag
Ni
Pd
Cu
33
What is the error in the following orbital diagram?
No error
3d not filled
4p not after 3d
arrows not paired
34
Which of the following electron dot notations is correct for the element aluminum, Al.
I
V
III
IV
35
What is the error in the following orbital diagram?
2s arrows both up
3p too full
Too many 3s orbitals
No Error
36
What (if anything) is wrong with this orbital diagram?
Nothing
Pauli Exclusion Principle violated
Aufbau Principle violated
Hund's Rule violated
37
If the electron configuration is [Ar] 4s
2
3d
7
what is the element?
Co
Cr
Fe
Rh
38
Who discovered the electron?
Robert Millikan
Lord Rutherford
J. J. Thomson
James Chadwick
39
Find the average atomic mass: 31% C-14, 28% C-12, 41% C-11
12.90 amu
38 amu
12.21 amu
4.07 amu
40
Who discovered the neutron?
J. J. Thomson
Robert Millikan
Lord Rutherford
James Chadwick
41
What is electron configuration?
Distributions of electrons throughout an atom or molecule
A political theory derived from Karl Marx, advocating class.
Electron configuration.
The crimson chin
42
An element consists of four stable isotopes. Calculate the average atomic mass.
207.22 amu
232.92 amu
204.78 amu
205.25 amu
43
What is the name of this model?
Thomson model
Dalton model
Bohr model
Rutherford model
44
For which element is the orbital diagram?
Neon
Fluorine
Oxygen
Nitrogen
45
What is another name for the Rutherford model?
Nuclear model
Planetary model
Quantum Mechanical model
Plum Pudding model
46
Which of the following is NOT a valid electron configuration?
[Ar] 4s2
1s2 2s2 2p6
[Ar]
1s2 2s2 2p6 3s2 3p6 3d10 4s2
47
Which of the following electron dot diagrams is correct for the element aluminum?
3
1
2
4
48
For which element is the orbital diagram?
Beryllium
Lithium
Hydrogen
Helium
49
Which Greek philosopher believed that all matter came from five elements?
Aristotle
Socrates
Plato
Democritus
50
The average atomic mass is 4
True
False
